Shari Redstone is bruised, battered and beaten — but not defeated — after losing her boardroom brawl with Philippe Dauman.

Viacom’s board on Thursday voted 10-to-1 to install Dauman, the company’s deeply entrenched chief executive, as chairman. That’s despite Shari’s call to name an “independent voice” to succeed her father, Sumner Redstone, atop the New York media giant, home to MTV, kiddie net Nickelodeon and Comedy Central along with the Paramount film studio.

Shari is a digital entrepreneur as well as a major shareholder in National Amusements — the family-run company that holds Sumner Redstone’s controlling interests in both Viacom and CBS.
The 92-year-old Sumner Redstone stepped down as chairman of both companies on Wednesday, a sign of bigger changes to come.

He voted against the wishes of his 61-year-old daughter, supporting longtime confidant Dauman as his successor. Dauman was on a vacation in St. Bart’s but called in for the board meeting, sources said.

“Shari is going to continue to advocate for what she believes to be in the best interests of Viacom shareholders,” said a statement.

Shari may be a lone voice in the Viacom’s boardroom, but her views about the need for an independent chairman — one not tied up in family affairs — is supported by investors.

Dauman is the designated health care agent for Sumner Redstone and will serve as a trustee on the seven-member trust that will take control of National Amusements in the event Sumner Redstone dies or is deemed incapacitated.

The stock dropped on news that Dauman was consolidating his power before several Wall Street analysts put out reports touting the potential for a breakup of the company.

The stock hit a high of $50.18 at 10:02 a.m. New York time but fell back to $47.63 at 11:53 a.m., shortly after the announcement. Viacom closed the session up 2.33 percent, at $48.68.

“Shari made a great, principled stand. The place is increasingly looking like a crime scene, not a company,” said one industry source. “And they keep buying up shares to prop up that toxic stock.”

Meanwhile, the family drama continued to play out alongside the corporate battles.

Shari claimed her father’s health had “flourished” since ex-girlfriend Manuela Herzer had been booted from his home, allowing his daughter access, according to court papers in a case over who should make decisions for the media mogul.

Herzer is fighting to be reinstated as Redstone’s healthcare agent after being replaced by Dauman last year. She claims Redstone was no longer mentally fit to make decisions.

“Shari Redstone’s declaration is a fictional account of her relationship with her father,” a lawyer for Herzer said. “Shari waited for his weakest moment to manipulate him.

“The attacks on [Herzer] are baseless and transparent attempts to obfuscate the truth about Mr. Redstone’s tragic mental incapacity and manipulation.”